Finland - 1969 Party Law

Title Section 4
Article

4

When an association has been entered in the party register as a political party, the abbreviation ‘r.p.', for the term ‘rekisteröity puolue' or ‘registrerat parti' (registered party), is added to its name.
Entries related to the registration of an association may not be used in connection with the name of a political party.

Categories - Extra-parliamentary party (Registration reqs.)
Source http://www.finlex.fi/fi/laki/ajantasa/1969/19690010 (Accessed: August 2012)